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Terminals
Pin Receptacles for .025-.032 dia. Pins & .025 Square Pins
4057 - X -

 Basic Part Number

XX -

Terminal Plating
01 - 200u" Tin over 100u" Nickel
02 - 10u" Gold over 100u" Nickel
03 - 30u" Gold over 100u" Nickel
04 - 50u" Gold over 100u" Nickel

XX -

Contact Type
48- (See Data on page 110)

XX

Contact Plating
11 - 150u" Tin over 50u"Nickel
12 - 10u" Gold over 50u" Nickel
13 - 30u" Gold over 50u" Nickel
14 - 50u" Gold over 50u" Nickel
SPECIFICATIONS Terminal Material: Brass Alloy 360, 1/2 Hard Contact Material: Beryllium Copper Alloy 172 HT
Tolerances:
Lengths - ±.005
Diameters - ±.002
Angles - 2°

Note: All dimensions are
in inches

4057
.061 Min. Mtg. Hole

4058

.061 Mtg. Hole 		4059

.061 Min. Mtg. Hole
4061

.067 Min. Mtg. Hole		 4271

Hex Press-fit in .061 Min. Mtg. Hole